Example sentences of "it has [be] [noun sg] [noun] " in BNC.

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1 Over the past ten years it has been government policy to encourage this ( DHSS , 1976a ) .
2 Of the domestic borrowers , local authorities issued , in the years between the mid-1950s and the early 1980s , a large volume of stocks ( over five years to maturity ) and negotiable bonds ( from one to four years to maturity ) ; but in recent years it has been government policy to centralise most public-sector borrowing and as a result public issues by local authorities have all but ceased .
3 In Britain , it has been trade unions , rather than manufacturers , purchasers and governments , who have taken the initiative in discussing the ergonomic design and installation of VDUs .
4 For six weeks it has been pitch black .
5 It has been market practice in asset-backed transactions for there to be a mechanism whereby transactions can be mopped up when the balance of performing assets falls below a given level , usually 10% of initial principal .
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